Sera Prognostics, Inc.
SERA- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001534969
In the last 90 days, Sera Prognostics, Inc. insiders filed 0 open-market purchases and 5 sales; 47 institutions reported holding it in 13F filings for Q2 2026, worth $31.0M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Sera Prognostics, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 47
- −8 vs. Q1 2026
- Shares held
- 17.1M
- −2.89M (−14.5%) vs. Q1 2026
- Total value
- $31.0M
- −$9.44M (−23.3%) vs. Q1 2026
- New holders
- 1
- 11 more added
- Sold out
- 9
- 13 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SERA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 47 | $31.0M |
| Q1 2026 | 56 | $40.5M |
| Q4 2025 | 57 | $52.1M |
| Q3 2025 | 62 | $55.6M |
| Q2 2025 | 59 | $51.5M |
| Q1 2025 | 71 | $74.4M |
| Q4 2024 | 73 | $147.2M |
| Q3 2024 | 61 | $140.3M |
| Q2 2024 | 65 | $98.2M |
| Q1 2024 | 52 | $131.1M |
| Q4 2023 | 47 | $66.8M |
| Q3 2023 | 28 | $16.5M |
| Q2 2023 | 33 | $31.4M |
| Q1 2023 | 35 | $36.5M |
| Q4 2022 | 29 | $8.86M |
| Q3 2022 | 35 | $13.9M |
| Q2 2022 | 30 | $14.2M |
| Q1 2022 | 45 | $36.6M |
| Q4 2021 | 37 | $63.8M |
| Q3 2021 | 36 | $96.1M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Sera Prognostics, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 45 | $0 | 0.00% | +2+4.7% | Added |
| SBI Securities Co., Ltd. | 4 | $7 | 0.00% | −3−42.9% | Reduced |
| Caitong International Asset Management Co., Ltd | 4 | $7 | 0.00% | 00.0% | Unchanged |
| Silicon Valley Capital Partners | 57 | $104 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 129 | $235 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 186 | $339 | 0.00% | −50−21.2% | Reduced |
| JPMorgan Chase & Co | 222 | $402 | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 1,000 | $1.82K | 0.00% | +1,000 | New |
| FMR LLC | 2,539 | $4.62K | 0.00% | −4,034−61.4% | Reduced |
| Barclays PLC | 3,179 | $5.79K | 0.00% | −28,788−90.1% | Reduced |
| Geneos Wealth Management Inc. | 10,800 | $19.7K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 11,169 | $20.3K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 11,309 | $20.6K | 0.00% | −3,560−23.9% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 10,504 | $20.7K | 0.00% | −54−0.5% | Reduced |
| Colony Group, LLC | 12,156 | $22.1K | 0.00% | 00.0% | Unchanged |
| Wagner Wealth Management, LLC | 12,400 | $22.6K | 0.00% | 00.0% | Unchanged |
| Riverview Capital Advisers, LLC | 12,669 | $23.1K | 0.01% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 16,221 | $29.5K | 0.00% | −5,743−26.1% | Reduced |
| XTX Topco Ltd | 16,808 | $30.6K | 0.00% | +317+1.9% | Added |
| Cetera Investment Advisers | 25,000 | $45.5K | 0.00% | 00.0% | Unchanged |
| Birch Hill Investment Advisors LLC | 27,293 | $49.7K | 0.00% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 29,499 | $53.7K | 0.00% | +9,964+51.0% | Added |
| Goldman Sachs Group Inc | 32,541 | $59.2K | 0.00% | +14,069+76.2% | Added |
| Catalyst Funds Management Pty Ltd | 38,890 | $70.8K | 0.00% | +15,326+65.0% | Added |
| Citadel Advisors LLC | 41,411 | $75.4K | 0.00% | −207,498−83.4% | Reduced |
| HighTower Advisors, LLC | 42,234 | $76.9K | 0.00% | 00.0% | Unchanged |
| Twelve Points Wealth Management LLC | 43,388 | $79.0K | 0.02% | 00.0% | Unchanged |
| Ballentine Partners, LLC | 49,664 | $90.4K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 50,871 | $92.6K | 0.00% | +30,954+155.4% | Added |
| Morgan Stanley | 50,972 | $92.8K | 0.00% | −54,045−51.5% | Reduced |
| Requisite Capital Management, LLC | 55,648 | $101.3K | 0.02% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 55,705 | $101.4K | 0.00% | +10,000+21.9% | Added |
| Bank of New York Mellon Corp | 60,927 | $110.9K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 68,595 | $124.8K | 0.00% | −27,940−28.9% | Reduced |
| Perigon Wealth Management, LLC | 72,685 | $132.3K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 73,986 | $134.7K | 0.00% | −17,518−19.1% | Reduced |
| State Street Corp | 124,792 | $227.1K | 0.00% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 170,908 | $311.1K | 0.00% | +1,247+0.7% | Added |
| AWM Investment Company, Inc. | 207,382 | $377.4K | 0.03% | 00.0% | Unchanged |
| BlackRock, Inc. | 221,369 | $402.9K | 0.00% | +25,264+12.9% | Added |
| Geode Capital Management, LLC | 348,967 | $635.5K | 0.00% | −14,650−4.0% | Reduced |
| Captrust Financial Advisors | 535,755 | $975.1K | 0.00% | −1,006−0.2% | Reduced |
| Vanguard Capital Management LLC | 1,297,792 | $2.36M | 0.00% | +93,677+7.8% | Added |
| Vivo Capital, LLC | 1,650,440 | $3.00M | 0.27% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 2,753,525 | $5.01M | 0.01% | +202,750+7.9% | Added |
| Whetstone Capital Advisors, LLC | 3,306,889 | $6.02M | 1.59% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 5,498,170 | $10.0M | 0.05% | 00.0% | Unchanged |
| PSP Research LLC | 0 | $0 | 0.00% | −2,396,685−100.0% | Sold out |
| Sanders Morris Harris LLC | 0 | $0 | 0.00% | −314,950−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −104,973−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −53,908−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −31,428−100.0% | Sold out |
| Arkadios Wealth Advisors | 0 | $0 | 0.00% | −12,400−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −12,085−100.0% | Sold out |
| Optiver Holding B.V. | 0 | $0 | 0.00% | −412−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |